CN115977557A - Oil pipe lifting control device for operation under pressure - Google Patents
Oil pipe lifting control device for operation under pressure Download PDFInfo
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- CN115977557A CN115977557A CN202310282303.6A CN202310282303A CN115977557A CN 115977557 A CN115977557 A CN 115977557A CN 202310282303 A CN202310282303 A CN 202310282303A CN 115977557 A CN115977557 A CN 115977557A
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Abstract
The invention belongs to the technical field of under-pressure operation, and discloses an under-pressure operation oil pipe lifting control device which comprises a frame, wherein a lifting oil cylinder is arranged on the frame, the lifting oil cylinder is connected with a moving cross beam, a moving slip group is arranged on the moving cross beam, a slip bracket is arranged on the frame, and a fixed slip group is arranged on the slip bracket; disc spring assemblies are arranged between the moving slip set and the moving cross beam and between the fixed slip set and the slip bracket; the terminal surface of the last annular dish spring of dish spring assembly and the terminal surface parallel and level of dish spring mount pad on the annular dish spring of going up after the annular dish spring atress compression down, the outer border of going up annular dish spring is laminated with the inner wall of installation cavity. According to the oil pipe lifting control device for operation under pressure, the slip can be prevented from being locked through the arranged disc spring assembly, the operation efficiency of equipment is improved, and the labor intensity of personnel can be effectively reduced.
Description
Technical Field
The invention belongs to the technical field of under-pressure operation, and particularly relates to an under-pressure operation oil pipe lifting control device.
Background
In the process of well completion and well workover, the moving slip group and the fixed slip group are frequently operated to clamp the pipe column, and both the moving slip group and the fixed slip group comprise a bearing slip and an anti-jacking slip. Under the pressure condition of the gas well, the operation machine with pressure only needs two sets of top-preventing slips to be used alternately to control the pipe column to move downwards when the operation of a pipe column is lifted, when the weight of a running pipe column is greater than the jacking force, the pipe column can possibly fall down, the jacking force is greater than the weight of the pipe column because the pressure in the well rises suddenly, the pipe column can be jacked to fly to cause an accident, so the control pipe column must be used simultaneously by the top-preventing slips and the bearing slips when a neutral point is crossed, when the floating slips and the fixed slips are used alternately, because the jam-releasing modes of the top-preventing slips and the bearing slips are different, four sets of slips are locked easily at this time, and the main reason is that the wedge-shaped contact surface force of the slip body and the slip seat cannot be released.
At present, two common modes are used for solving the problems, firstly, a fixing screw on a bearing slip is loosened when a neutral point is passed, and when the slip is locked, a point of displacement can be generated, so that the slip is convenient to unlock; secondly, install the spring additional at the slips bottom, reserve out the unblock space, under the condition of heavy load, the spring can directly bear the load, is broken by pressure very easily when high load, simultaneously because the spring takes place to shake mobility easily, influences the normal use of slips. Therefore, the above two methods can solve the problem that the slips are locked to a certain extent, but are still not ideal.
Disclosure of Invention
The present invention aims to solve the above technical problem at least to some extent. Therefore, the invention aims to provide a lifting control device for an oil pipe for pressure operation.
The technical scheme adopted by the invention is as follows:
a lifting control device for an oil pipe in a pressure operation comprises a frame, wherein a lifting oil cylinder is arranged on the frame and is connected with a moving cross beam, a moving slip group is arranged on the moving cross beam, a slip support is arranged on the frame, and a fixed slip group is arranged on the slip support; disc spring assemblies are arranged between the moving slip group and the moving cross beam and between the fixed slip group and the slip bracket; the disc spring assembly comprises a disc spring mounting seat, a lower annular disc spring and an upper annular disc spring, the lower annular disc spring is mounted in a mounting cavity of the disc spring mounting seat, and the outer edge of the upper annular disc spring is connected with the outer edge of the lower annular disc spring; the end face of the upper annular disc spring and the end face of the lower annular disc spring are flush with the end face of the disc spring mounting seat after the upper annular disc spring and the lower annular disc spring are stressed and compressed, and the outer edge of the upper annular disc spring is attached to the inner wall of the mounting cavity.
Preferably, the moving slip group comprises a moving bearing slip arranged on the upper surface of the moving beam and a moving anti-jacking slip arranged on the lower surface of the moving beam, and the moving bearing slip and the moving anti-jacking slip are installed back to back; the fixed slip group comprises a fixed bearing slip and a fixed anti-jacking slip which are arranged on the slip support, and the fixed bearing slip and the fixed anti-jacking slip are oppositely arranged; the disc spring mounting seat, the upper annular disc spring, the lower annular disc spring, the moving bearing slips, the moving anti-jacking slips, the fixed bearing slips and the fixed anti-jacking slips are all arranged on the same straight line.
Preferably, the frame comprises a lower substrate and an upper substrate which are arranged in parallel, and the lower substrate and the upper substrate are connected through a plurality of stand columns; an annular blowout preventer is arranged on the lower base plate, and the slip support is arranged on the annular blowout preventer.
Preferably, the number of the lifting oil cylinders is two, and the two lifting oil cylinders are arranged in parallel; a through hole for an oil pipe to pass through is formed in the disc spring mounting seat; the lower annular disc spring is installed on the disc spring installation seat through a bolt.
The beneficial effects of the invention are as follows:
according to the oil pipe lifting control device for operation under pressure, the slip set can be prevented from being locked due to the deformation generated by the arranged disc spring assembly under low load, the operation efficiency of equipment is improved, and the labor intensity of personnel is reduced; the dish spring assembly is compressed the back at high load, and when its installation face was the terminal surface parallel and level with the dish spring mount pad, the damage of dish spring assembly can be avoided transmitting the load through the dish spring mount pad.
Drawings
Fig. 1 is a schematic view of the tubing lift control device for operation under pressure of the present invention.
Fig. 2 is a cross-sectional view of the disc spring assembly of the present invention.
Fig. 3 is a schematic view of the disc spring assembly of the present invention after compression.
In the figure: 1-lower substrate; 2-an upper substrate; 3-upright column; 4-lifting the oil cylinder; 5-a traveling beam; 6-annular blowout preventer; 7-a slip bracket; 8-a traveling load-bearing slip; 9-traveling anti-jacking slips; 10-disc spring assembly; 11-fixed load-bearing slips; 12-fixing the anti-jacking card; 13-disc spring mounting seat; 14-lower annular disc spring; 15-upper ring disc spring.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
In the description of the embodiments of the present invention, it should be noted that the indication of the orientation or the positional relationship is based on the orientation or the positional relationship shown in the drawings, or the orientation or the positional relationship which is usually placed when the product of the present invention is used, or the orientation or the positional relationship which is conventionally understood by those skilled in the art, is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or the element which is indicated must have a specific orientation, be constructed in a specific orientation and operate, and thus, cannot be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements.
The tubular column includes oil pipe, as shown in fig. 1, the oil pipe lifting control device with pressure of this embodiment includes a frame, the frame includes parallel arrangement's infrabasal plate 1 and upper base plate 2, link to each other through many stands 3 between infrabasal plate 1 and the upper base plate 2. An annular blowout preventer 6 is arranged on the lower base plate 1, a slip support 7 is arranged on the annular blowout preventer 6, and a fixed slip group is arranged on the slip support 7; the fixed slip group comprises a fixed bearing slip 11 arranged on the upper surface of a bottom plate of the slip support 7 and a fixed anti-jacking slip 12 arranged on the lower surface of a top plate of the slip support 7, and the fixed bearing slip 11 and the fixed anti-jacking slip 12 are installed oppositely.
The upper base plate 2 is provided with two parallel lifting oil cylinders 4, the lifting oil cylinders 4 are connected with a moving beam 5, a moving slip group is arranged on the moving beam 5 and comprises a moving bearing slip 8 arranged on the upper surface of the moving beam 5 and a moving anti-jacking slip 9 arranged on the lower surface of the moving beam 5, the moving bearing slip 8 and the moving anti-jacking slip 9 are installed in a back-to-back mode, and lifting or pressing load of the lifting oil cylinders 4 is transferred to the moving bearing slip 8 and/or the moving anti-jacking slip 9 through the moving beam 5.
As shown in fig. 2 and 3, the disc spring assembly 10 includes a disc spring mounting seat 13, a lower annular disc spring 14 and an upper annular disc spring 15, the disc spring mounting seat 13 is provided with a mounting cavity in an inward concave manner, the lower annular disc spring 14 is mounted in the mounting cavity of the disc spring mounting seat 13 through a bolt, the upper annular disc spring 15 and the lower annular disc spring 14 are equally large, the outer edge of the upper annular disc spring 15 is connected with the outer edge of the lower annular disc spring 14, and when the slips are mounted on the disc spring assembly 10, the slip seats of the slips are mounted on the upper annular disc spring.
The principle of the disc spring assembly 10 is explained by taking the fixed bearing slips 11 as an example, the slip seat of the fixed bearing slips 11 is installed on the upper end surface (namely, the installation surface) of the upper annular disc spring 15, when the upper annular disc spring 15 is not under pressure (the gravity of the fixed bearing slips 11 is ignored at this time), the slip seat of the fixed bearing slips 11 is not in direct contact with the disc spring installation seat 13, after the upper annular disc spring 15 is under pressure, the upper annular disc spring 15 and the lower annular disc spring 14 are both compressed until the upper end surface of the upper annular disc spring 15 is flush with the upper end surface of the disc spring installation seat 13, namely, the surface a and the surface B shown in fig. 2 are flush, the surface a and the surface B are flush, a plane is formed, the slip seat of the fixed bearing slips 11 is also in contact with the surface a of the disc spring installation seat at this time, the load can be more effectively transferred to the bottom plate of the slip support 7 through the disc spring installation seat, the upper annular disc spring 15 and the lower annular disc spring 14 cannot be compressed continuously, and the disc spring assembly 10 is not easy to be damaged under the condition of a large load. When the up end of last annular dish spring 15 and the up end parallel and level of dish spring mount pad 13, the outer border of going up annular dish spring 15 just in time laminates with the inner wall of installation cavity, goes up annular dish spring 15 and can not take place to rock to fixed bearing slips 11's stability has been kept. The disc spring assembly reserves an elastic space between the slip seat of the fixed bearing slip and the upper end face of the upper annular disc spring, the fixed bearing slip is bounced when the load is relieved, and the force of the slip body and the wedge-shaped contact surface is released, so that the slip locking phenomenon is avoided.
The lower annular disc spring 14 and the upper annular disc spring 15 are both made of high-strength spring steel, so that the strength of the disc spring assembly can be further increased.
The disc spring mounting seat 13 is provided with a through hole for oil pipes to pass through, and the disc spring mounting seat 13, the upper annular disc spring 15, the lower annular disc spring 14, the moving bearing slips 8, the moving anti-jacking slips 9, the fixed bearing slips 11 and the fixed anti-jacking slips 12 are all arranged on the same straight line.
The operation of the oil pipe lifting control device for the operation under pressure passing through a neutral point is as follows:
step one, when the midpoint is reached, the moving slip group is closed, the lifting oil cylinder lifts, the fixed bearing slip is opened, the lifting oil cylinder presses downwards, the fixed anti-jacking slip is opened, and the drill is driven downwards.
And step two, when the movable bearing slips move downwards for a certain position, closing the fixed slip set, pressing the lifting oil cylinder downwards, opening the movable bearing slips, lifting the lifting oil cylinder, opening the movable anti-jacking slips, continuously lifting the lifting oil cylinder to a proper position, and repeating the step one.
In the process, when the slips are subjected to load transfer, the upper annular disc spring and the lower annular disc spring which bear the slips are subjected to small displacement by low load, after the load transfer is successful, the load disappears, at the moment, the upper annular disc spring and the lower annular disc spring recover and deform, and the slips are prevented from being locked by the small displacement.
The invention is not limited to the above alternative embodiments, and any other various forms of products can be obtained by anyone in the light of the present invention, but any changes in shape or structure thereof, which fall within the scope of the present invention as defined in the claims, fall within the scope of the present invention.
Claims (9)
1. The utility model provides a pressure operation oil pipe lift control device which characterized in that: the movable slip type hydraulic lifting device comprises a frame, wherein a lifting oil cylinder (4) is arranged on the frame, the lifting oil cylinder (4) is connected with a movable cross beam (5), a movable slip group is arranged on the movable cross beam (5), a slip support (7) is arranged on the frame, and a fixed slip group is arranged on the slip support (7); disc spring assemblies (10) are arranged between the moving slip set and the moving cross beam (5) and between the fixed slip set and the slip bracket (7); the disc spring assembly (10) comprises a disc spring mounting seat (13), a lower annular disc spring (14) and an upper annular disc spring (15), the lower annular disc spring (14) is mounted in a mounting cavity of the disc spring mounting seat (13), and the outer edge of the upper annular disc spring (15) is connected with the outer edge of the lower annular disc spring (14); the end face of the upper annular disc spring (15) is flush with the end face of the disc spring mounting seat (13) after the upper annular disc spring (15) and the lower annular disc spring (14) are stressed and compressed, and the outer edge of the upper annular disc spring (15) is attached to the inner wall of the mounting cavity.
2. The oil pipe lifting control device for the operation with pressure according to claim 1, characterized in that: the moving slip group comprises a moving bearing slip (8) arranged on the upper surface of the moving beam (5) and a moving anti-jacking slip (9) arranged on the lower surface of the moving beam (5), and the moving bearing slip (8) and the moving anti-jacking slip (9) are installed in a back-to-back mode.
3. The tubing lift control device for working with pressure according to claim 2, wherein: the fixed slip group comprises a fixed bearing slip (11) and a fixed anti-jacking slip (12) which are arranged on a slip support (7), and the fixed bearing slip (11) and the fixed anti-jacking slip (12) are installed oppositely.
4. The tubing lift control device for working with pressure according to claim 3, wherein: the disc spring mounting seat (13), the upper annular disc spring (15), the lower annular disc spring (14), the moving bearing slips (8), the moving anti-jacking slips (9), the fixed bearing slips (11) and the fixed anti-jacking slips (12) are all arranged on the same straight line.
5. The oil pipe lifting control device for the operation with pressure according to claim 1, characterized in that: the frame includes parallel arrangement's infrabasal plate (1) and upper substrate (2), links to each other through many stands (3) between infrabasal plate (1) and upper substrate (2).
6. The oil pipe lifting control device with pressure operation of claim 5, characterized in that: an annular blowout preventer (6) is arranged on the lower base plate (1), and the slip support (7) is arranged on the annular blowout preventer (6).
7. The oil pipe lifting control device for the operation with pressure according to claim 1, characterized in that: the number of the lifting oil cylinders (4) is two, and the two lifting oil cylinders (4) are arranged in parallel.
8. The oil pipe lifting control device for the operation with pressure according to claim 1, characterized in that: and the disc spring mounting seat (13) is provided with a through hole for an oil pipe to pass through.
9. The oil pipe lifting control device for the operation with pressure according to claim 1, characterized in that: the lower annular disc spring (14) is mounted on the disc spring mounting seat (13) through bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310282303.6A CN115977557B (en) | 2023-03-22 | 2023-03-22 | Oil pipe lifting control device for operation under pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310282303.6A CN115977557B (en) | 2023-03-22 | 2023-03-22 | Oil pipe lifting control device for operation under pressure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115977557A true CN115977557A (en) | 2023-04-18 |
| CN115977557B CN115977557B (en) | 2023-05-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310282303.6A Active CN115977557B (en) | 2023-03-22 | 2023-03-22 | Oil pipe lifting control device for operation under pressure |
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| Country | Link |
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| CN (1) | CN115977557B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116733389A (en) * | 2023-08-14 | 2023-09-12 | 廊坊景隆重工机械有限公司 | Elastic slip, pressurized operation pipe column automatic control device comprising elastic slip and pressurized operation pipe column automatic control method |
| CN117549818A (en) * | 2024-01-12 | 2024-02-13 | 四川翔瑞特种车辆装备有限公司 | Mobile police car |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116733389A (en) * | 2023-08-14 | 2023-09-12 | 廊坊景隆重工机械有限公司 | Elastic slip, pressurized operation pipe column automatic control device comprising elastic slip and pressurized operation pipe column automatic control method |
| CN116733389B (en) * | 2023-08-14 | 2023-10-17 | 廊坊景隆重工机械有限公司 | Elastic slip, pressurized operation pipe column automatic control device comprising elastic slip and pressurized operation pipe column automatic control method |
| CN117549818A (en) * | 2024-01-12 | 2024-02-13 | 四川翔瑞特种车辆装备有限公司 | Mobile police car |
| CN117549818B (en) * | 2024-01-12 | 2024-03-26 | 四川翔瑞特种车辆装备有限公司 | Mobile police car |
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|---|---|
| CN115977557B (en) | 2023-05-16 |
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